The symbiotic system construction of Shangzhi urban spatial structure

The rapid development and urbanization brought about by a variety of urban issues facing our country has become the most serious challenges. At present, China has taken initial shape of the urban system is a big city as the center, medium and small cities as the backbone of small towns based. Therefore, the development of medium and small cities in the urbanization process, occupies an important position. Shangzhi City of Heilongjiang Province, for example, Symbiosis theory was introduced into the urban planning, in order to coordinate regional development as the goal, according to the symbiotic theory of structure to establish a small and medium urban spatial structure of "symbiotic system", and to analysis system of the symbiotic unit, the symbiotic environment, symbiotic model and the symbiotic interface, clearing system of interaction between the various elements. Lay a good theoretical basis for the future development of urban spatial development planning.